Application of zephyranthes candida in purifying livestock breeding biogas slurry

Abstract

The invention discloses application of zephyranthes candida in purifying livestock breeding biogas slurry, which belongs to the field of wastewater processing. The zephyranthes candida is planted in a livestock breeding biogas slurry pollution environment; and the function of the zephyranthes candida for absorbing pollution matters such as NH4+-N, TN, TP, CODcr in the livestock breeding biogas slurry, and the characteristics that the zephyranthes candida has tenacious vitality, can be planted directly, has no need to be managed specially, and is perennial are fully utilized, so that the problem of livestock breeding biogas slurry pollution is solved permanently. The investment is small, the operation cost is low, the effect is good, the operation is simple and easy to realize, the purifying effect in winter is ensured, and meanwhile, the secondary pollution can be avoided. The harvested zephyranthes candida has certain medicinal value, and can be used for treating febrile convulsion and epilepsy. The zephyranthes candida is utilized for processing wastewater, and the environment protection is combined with landscape construction and economic construction, so that a sustainable development idea taking consideration of sewage processing, ecological restoration, landscape construction and economic benefit is embodied, which is profound.

Description

technical field [0001] The invention relates to the field of livestock and poultry breeding biogas slurry treatment, in particular to an application of artificial wetland plants to purify livestock and poultry breeding biogas slurry. Background technique [0002] In recent years, with the rapid development of the large-scale and intensive livestock and poultry breeding industry, the environmental pollution caused by the livestock breeding industry has become increasingly serious, and its impact on rural drinking water safety, irrigation water, soil, agricultural products and air quality and rural The living environment poses a great threat. Anaerobic digestion technology has been widely used in the bioenergy development and pollution control of livestock and poultry wastewater, which can effectively suppress the primary pollution of livestock and poultry wastewater; however, the biogas slurry of many large-scale farms is directly discharged, resulting in Serious secondary p...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method to solve the problems that the existing artificial wetland technology can be used to purify the biogas slurry of livestock and poultry because of insufficient plant species resources, low economic value, poor cold resistance, easy to die in winter, and cannot guarantee the purification effect of low temperature environment. New plant resources that can be used to purify biogas slurry from livestock and poultry breeding

Images